--- old/src/share/vm/classfile/javaClasses.hpp	2015-10-14 13:53:54.060376913 +0200
+++ new/src/share/vm/classfile/javaClasses.hpp	2015-10-14 13:53:53.931380032 +0200
@@ -157,7 +157,11 @@
     if (count_offset > 0) {
       return java_string->int_field(count_offset);
     } else {
-      return ((typeArrayOop)java_string->obj_field(value_offset))->length();
+      oop value = java_string->obj_field(value_offset);
+      if (ShenandoahVerifyReadsToFromSpace) {
+        value = oopDesc::bs()->read_barrier(value);
+      }
+      return ((typeArrayOop) value)->length();
     }
   }
   static int utf8_length(oop java_string);